func readProductByTitle(db *sql.DB, title string) {
    // read product itself
    product := &Product{}
    rows, err := db.Query(fmt.Sprintf("SELECT * FROM product WHERE title = '%v'", title))

    if err != nil {
        panic(err)
    }

    rows.Next()
    rows.Scan(&product.Id, &product.Category, &product.Title, &product.Cost)

    // read datasheets
    rows.Close()
    datasheets := make([]Datasheet, 0)
    rows, err = db.Query(fmt.Sprintf("SELECT id, title, text, sort FROM datasheet WHERE product = %v ORDER BY sort", product.Id))

    if err != nil {
        panic(err)
    }

    for rows.Next() {
        datasheet := Datasheet{}

        if err := rows.Scan(&datasheet.Id, &datasheet.Title, &datasheet.Text, &datasheet.Sort); err != nil {
            panic(err)
        }

        datasheets = append(datasheets, datasheet)
    }

    product.Datasheets = datasheets

    // read reviews
    rows.Close()
    reviews := make([]Review, 0)
    // FIXME: read "created" timestamp
    rows, err = db.Query(fmt.Sprintf("SELECT r.id, r.author, u.email, r.title, r.text FROM review r JOIN user u ON u.id = r.author WHERE r.product = %v", product.Id))
    defer rows.Close()

    if err != nil {
        panic(err)
    }

    for rows.Next() {
        review := Review{}

        if err := rows.Scan(&review.Id, &review.AuthorId, &review.Author, &review.Title, &review.Text); err != nil {
            panic(err)
        }

        reviews = append(reviews, review)
    }

    product.Reviews = reviews

    log.Printf("ID: %v, category: %v, title: %v, cost: %v", product.Id, product.Category, product.Title, product.Cost)
    printDatasheets(&product.Datasheets)
    printReviews(&product.Reviews)
}